Search a number
-
+
29816331379 = 215871381217
BaseRepresentation
bin11011110001001100…
…010001110001110011
32211221221200120101121
4123301030101301303
5442030440101004
621410351243111
72103606430552
oct336114216163
984857616347
1029816331379
11117105a608a
125941519497
132a72308443
14162bcb7d99
15b97948854
hex6f1311c73

29816331379 has 4 divisors (see below), whose sum is σ = 29817734184. Its totient is φ = 29814928576.

The previous prime is 29816331367. The next prime is 29816331383. The reversal of 29816331379 is 97313361892.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 29816331379 - 221 = 29814234227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29816331319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 669022 + ... + 712195.

It is an arithmetic number, because the mean of its divisors is an integer number (7454433546).

Almost surely, 229816331379 is an apocalyptic number.

29816331379 is a deficient number, since it is larger than the sum of its proper divisors (1402805).

29816331379 is a wasteful number, since it uses less digits than its factorization.

29816331379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402804.

The product of its digits is 1469664, while the sum is 52.

The spelling of 29816331379 in words is "twenty-nine billion, eight hundred sixteen million, three hundred thirty-one thousand, three hundred seventy-nine".

Divisors: 1 21587 1381217 29816331379